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2024 Seed Catalog

Penstemon Twizzle Purple - Penstemon barbatus

PEN0002

Twizzle Purple

Penstemon Seeds

Penstemon barbatus syn. Chelone barbata

A 2017 All-America Selections Winner. Brilliant deep purple 1-1½ in. bell-shaped flowers held on remarkably long, strong and slender, 2 to 3 ft. stems. Blooms attract hummingbirds and are excellent cut flowers.

The vigorous, well-branched plants bloom the first year, flower from June to September, and are beautiful in beds, borders, and containers. Twizzle Purple penstemon is a winter hardy perennial to zone 5, which can be grown as an annual everywhere.

20 seeds - $4.99
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View all of our Penstemon varieties.

Growing Twizzle Purple Penstemon Seeds

Bee introduces how to plant

Plant Penstemon Seeds: Sow penstemon seed in cell packs or flats, press into soil, and barely cover. Kept at 60-70° F., germination in 14 to 30 days.

Grow Penstemon: Penstemons prefer full sun, part sun in hottest climates. Plants need little to moderate water once established. Avoid overly fertile soil. Flowers attract butterflies and hummingbirds. Plants are deer resistant.

Shipping Information

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Standard U.S. shipping is $5.99.
Priority U.S. shipping is $9.99.


International Shipping Rates

Shipping to Canada is $13.99.
International shipping to all other countries is $15.99.

Satisfaction Guarantee

We guarantee all the seeds we sell for one full year from the date of purchase. If you are unsatisfied with any seeds purchased from Swallowtail Garden Seeds, we will issue a refund. For customers in the U.S., we can send one-time replacements or issue a refund.